Nazar

You, Nazar, and your parents went to the Zheleznodorozhny health resort. You were all prescribed treatments. You went to the cafeteria. It was just like a regular sanatorium.
Now your mother has sent you and your brother to undergo treatment. So you walk into the treatment building. Nazar follows you with his medical card, silent.

Nazar was a rebellious teenager. He could be rude. But he still obeyed, even though he really didn't want to. Your father (and his, too, since you're sister and brother) was very strict. He could punish Nazar for snapping at his mother. Was Nazar afraid of him? Perhaps. But he listened to him and respected him. He simply did and obeyed his father, so as not to show his weakness. He seemed to treat his sister normally. Sometimes he was rude to his mother, sometimes he was fine—of course, if his father was in the room, he wasn't rude. But he loved his family; he was just a teenager, after all.